Answer:
4
Step-by-step explanation:
f(x)=2x-4
- f(x)=2(4)-4
- f(x)=8-4
- f(x)=4
Just plug in 4 into x. If you get confused on what f(x) means, it basically is the output value or the y value. So when plugging in the number for f(x), I recommend not worrying about the symbol f(x) too much.
